diff --git a/pom.xml b/pom.xml
index e229f7d..856c9ce 100644
--- a/pom.xml
+++ b/pom.xml
@@ -36,7 +36,7 @@
         <dependency>
             <groupId>ch.qos.logback</groupId>
             <artifactId>logback-classic</artifactId>
-            <version>1.2.3</version>
+            <version>1.2.13</version>
         </dependency>
         <dependency>
             <groupId>org.web3j</groupId>